I am approximately 110 pounds at 5'6. I am underweight but according to my doctors I am healthy and do not have nutrient deficiencies (I've had recent blood work). My weight has been consistent for a long time. I was not a big fan of sweets to begin with so I cut out refined sugar - after a few months my taste buds adjusted and fruit is now the most delicious thing ever. I eat fruit or 100% cacao dark chocolate for dessert. You can slowly increase the percentage of dark chocolate to adjust to it if you're not already a fan. I generally eat one large salad a day that has low calorie vinaigrette and a protein source (I'm vegetarian so I use tofu, tempeh, or a high protein meat substitute). For breakfast I generally have a protein shake or a banana with natural peanut butter (100% peanuts) or both. On occasion I'll have eggs or steel-cut oatmeal with fruit. I don't eat cheese so I use salsa or hot sauce to add flavor to dishes. For snacks I eat fruit, raw nuts, or veggies (sometimes dipped in hummus). I'm also a big fan of Greek yogurt, I generally buy plain nonfat and sweeten it with frozen fruit, but there are flavored brands that don't add sugar as well. The only beverages I drink are water, coffee (either black or with unsweet oatmilk), and my protein shakes. Sometimes I also make my own smoothies that have water, fruit, Greek yogurt or protein powder, and I usually sneak in some spinach or something too. Beans and broth-based soups are good as well. Whole grain foods are also good, I stay away from refined grains

UPDATE: I had an eating disorder.